Two-dimensional cursor-to-target control from single muscle site sEMG signals

Claudia Perez-Maldonado, Anthony S. Wexler, Sanjay S. Joshi

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


In this study, human subjects achieve two-dimensional cursor-to-target control using the surface electromyogram (sEMG) from a single muscle site. The X-coordinate and the Y-coordinate of the computer cursor were simultaneously controlled by the active manipulation of power within two frequency bands of the sEMG power-spectrum. Success of the method depends on the sEMG frequency bandwidths and their midpoints. We acquired the sEMG signals at a single facial muscle site of four able-bodied subjects and trained them, by visual feedback, to control the position of the cursor. After training, all four subjects were able to simultaneously control the X and Y positions of the cursor to accurately and consistently hit three widely-separated targets on a computer screen. This technology has potential application in a wide variety of humanmachine interfaces to assistive technologies.

Original languageEnglish (US)
Article number5378610
Pages (from-to)203-209
Number of pages7
JournalIEEE Transactions on Neural Systems and Rehabilitation Engineering
Issue number2
StatePublished - Apr 2010


  • Human-machine interface
  • Surface electromyogram (sEMG)
  • Terms-Cursor control

ASJC Scopus subject areas

  • Neuroscience(all)
  • Computer Science Applications
  • Biomedical Engineering
  • Medicine(all)


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